Thanks For The Kind Words
“Your company is excellent as is the work you do and you are never too busy to answer questions. I have complete faith in you.
When my air conditioning was not working you actually called GM regarding my car to see if my warranty would cover the repairs. The answer was yes so you advised me to have the repairs performed at the dealers so there would be no charge to me.
What I feel has benefited me most are the bumper to bumper inspections. I had one just prior to my three year warranty expiring and one before the powertrain warranty expired. Both times the work that needed doing saved me more money than the cost of the inspections.”

~ Ann Joy


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Whether you want to simply performance check your A/C system, test an inoperative air conditioning system, perform a tri-annual evacuate and recharge maintenance , install a complete system or convert from R12 to 134A Jim Dickinson Auto Tech is the place to take your vehicle.

Our senior technician,   has over 38 years experience in the trade and has specialized in Air Conditioning  for the last 26 years. Todays climate controlled systems are often computer controlled and the manufacturers design important safeguards to protect your system. Having a complete understanding of these systems is paramount in arriving at an accurate diagnosis in todays high tech vehicles.

An annual system check involves testing the duct output temperature, cleaning salt and debris from condensor fins and AC lines, verifying condensor fan(s) operate at both speeds, checking belt tension and condition of hoses and observing AC compressor operation. If there are any doubts about the system’s operation attaching a guage set and observing operating pressures.

Testing an inoperative system is often a 2 1/2 hour procedure beginning with identifying current gases and percentage of air in the system. We then Charge the system with nitrogen and check for leaks. If there are any large leaks we test run the compressor momentarily checking for any abnormal noises. If there are no large leaks we place the system in a deep vacuum and check for vacuum decay on a micron guage. If vacuum decay is within specified limits the system is fully charged and performance tested to ensure the system is operating properly. All components operating parameters are noted on our diagnostic worksheet. A/C duct temperature is verified and operating pressures are monitored for 15-30 minutes ensuring the system functions properly. Finally a leak test is done with an electronic leak detector followed by testing for any dye present with a black light. At the end of this procedure we can tell you where all your leaks are and whether the system will actually cool your car after the leaks are repaired. Skipping any of these steps will result in an inaccurate diagnosis and often discovering after the leaks are repaired that the system doesn’t operate as intended. .

A tri-annual evacuate and recharge of your AC system will ensure your AC compressor runs for the entire life of the vehicle and the system components do not corrode through due to internal corrosion. Your air conditioning compressor is lubricated by a refrigerant oil present in the 134A charge. If the system is operated in a low state of charge (typical customer complaint that the air isn’t cold enough) the compressor is eventually damaged due to lack of lubrication. When the system is put into a deep vacuum moisture is boiled out of the system preventing acids from forming internally that corrode and eventually perforate the components.

We supply and install premium systems and still retrofit old R12 vehicles to 134A during the repair process.


Thanks for the Kind Words

“Inspires confidence and trust. The Owner - the Guy whose name is on the door - is there on site doing the work. I am new to Ottawa and picked Jim at random from a CAA- Approved List. I`m glad I did. I`m now a loyal Customer. My positive experience took place before I had even set foot in the door. I called Jim to ask about my air conditioning problem. Jim spent about 20 minutes on the phone, patiently explaining how and what he would do. He was an excellent communicator and won over my business! I joined the Car Care Club because I think it`s excellent value. I like to bring my car to the same place where they get to know me and my car. There`s attention to detail, pride of work, honesty and an old-fashioned “service-first” attitude here. The job is always done right and there`s even a Loaner car available!” ~ Neil Kushnir